Grand Seiko Hand-winding Spring Drive 38.5mm
SBGY013 · Omiwatari silver dial
How it wears
Wears smaller than its 38.5 mm case suggests
Grand Seiko Hand-winding Spring Drive 38.5mm measures 43.7 mm lug-to-lug on a 38.5 mm case, a lug-to-lug ratio of 1.14 against a database median of 1.18. That span is shorter than 81% of the 8,054 watches in this database and shorter than 81% of the 232 Grand Seiko watches listed.
A flat wrist width of 49 mm (1.93 in) or more keeps it in the balanced range, and from 59 mm (2.32 in) it starts to look compact. Below 43.7 mm (1.72 in) the lugs are likely to overhang the wrist. Flat wrist width is measured straight across the top of the wrist, not around it.
At 10.2 mm thick it is on the slim side, thinner than 81% of the watches with a listed thickness.
Wrist fit analyzer
Fit reference
Sits comfortably within the wrist width for most wearers.
Sources
- https://www.grand-seiko.com/us-en/collections/sbgy013g
Manufacturer page: 38.5 mm diameter, 43.7 mm lug-to-lug, 10.2 mm thickness, and 19 mm band width.
- https://www.hodinkee.com/articles/a-snowy-take-on-the-fan-fave-omiwatari-leads-4-new-watches-from-grand-seiko
Hodinkee reports 43.7mm lug-to-lug, 38.5mm case size/width, 10.2mm thickness for Grand Seiko Omiwatari in “Introducing: A Snowy Take On The Fan-Fave 'Omiwatari' Leads 4 New Watches From Grand Seiko.”
- https://monochrome-watches.com/hands-on-review-new-grand-seiko-omiwatari-sbgy013-spring-drive-steel-bracelet-specs-price/
MONOCHROME reports 43.7mm lug-to-lug, 38.5mm case size/width, 10.2mm thickness for Grand Seiko Manual-winding Spring Drive in “The Sporty-Chic Grand Seiko Omiwatari SBGY013 Spring Drive.”
- https://www.grand-seiko.com/global-en/collections/sbgy013g
Official Grand Seiko global product page lists SBGY013 with case size Diameter 38.5mm Lug-to-lug 43.7mm Thickness 10.2mm, band width 19 mm (stored as lug width).
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